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feat: hit on primitives

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This commit is contained in:
IliaDenisov
2026-03-07 19:28:22 +02:00
parent e4b956232f
commit c076347d70
21 changed files with 1167 additions and 165 deletions
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client/editor.go
+33 -6
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@@ -1,6 +1,7 @@
package client
import (
"fmt"
"image"
"image/color"
"math"
@@ -47,6 +48,8 @@ type editor struct {
viewportImg *image.RGBA
viewportW int
viewportH int
hits []world.Hit
}
func (e *editor) CanvasScale() float32 { return e.canvasScale }
@@ -171,7 +174,24 @@ func (e *editor) onDradEnd() {
e.pan.DragEnd()
}
func (e *editor) wheelZoom(stepDelta int) {}
func (e *editor) onTapped(ev *fyne.PointEvent) {
hits, err := e.world.HitTest(e.hits, e.wp, int(ev.Position.X*e.canvasScale), int(ev.Position.Y*e.canvasScale))
if err != nil {
panic(err)
}
m := func(v int) float64 {
return float64(v) / float64(world.SCALE)
}
var coord string
for _, hit := range hits {
if hit.Kind == world.KindLine {
coord = fmt.Sprintf("{%f,%f - %f,%f}", m(hit.X1), m(hit.Y1), m(hit.X2), m(hit.Y2))
} else {
coord = fmt.Sprintf("{%f,%f}", m(hit.X), m(hit.Y))
}
fmt.Println("hit:", hit.ID, "Coord:", coord)
}
}
func (e *editor) InitImage() {
s := fyne.NewSize(292, 292)
@@ -203,6 +223,7 @@ func NewEditor() *editor {
Options: &world.RenderOptions{DisableWrapScroll: false},
},
canvasScale: 1.0,
hits: make([]world.Hit, 5),
}
// Create a drawer with some initial context; real size will be adjusted on first draw.
@@ -213,7 +234,7 @@ func NewEditor() *editor {
return e.draw(wPx, hPx)
})
e.canvas = newInteractiveRaster(e, e.raster, e.onMapLayout, e.onScrolled, e.onDragged, e.onDradEnd)
e.canvas = newInteractiveRaster(e, e.raster, e.onMapLayout, e.onScrolled, e.onDragged, e.onDradEnd, e.onTapped)
e.pan = NewPanController(e)
// Wire coalescer: it schedules raster.Refresh() on UI thread and renders once per draw call.
@@ -241,18 +262,24 @@ func testWorldInit(w *world.World) {
StrokeDashes: new([]float64{10.}),
})
circleStyle := w.AddStyleCircle(world.StyleOverride{
discStyle := w.AddStyleCircle(world.StyleOverride{
FillColor: color.RGBA{R: 255, G: 255, B: 0, A: 255},
})
if _, err := w.AddCircle(150, 150, 50, world.CircleWithStyleID(circleStyle)); err != nil {
circleStyle := w.AddStyleCircle(world.StyleOverride{
FillColor: world.TransparentFill(),
StrokeColor: color.RGBA{R: 255, G: 255, B: 255, A: 255},
StrokeWidthPx: new(4.0),
})
if _, err := w.AddCircle(150, 150, 50, world.CircleWithStyleID(discStyle)); err != nil {
panic(err)
}
if _, err := w.AddCircle(150, 299, 30); err != nil {
if _, err := w.AddCircle(150, 299, 30, world.CircleWithStyleID(circleStyle)); err != nil {
panic(err)
}
if _, err := w.AddCircle(299, 150, 30); err != nil {
if _, err := w.AddCircle(299, 150, 30, world.CircleWithStyleID(circleStyle)); err != nil {
panic(err)
}